PlanetToolbox
Password Generator
Generate strong random passwords with batch output, custom symbols, character-set controls, ambiguous-character filtering, and entropy estimates.
Password length
--
Entropy estimate
--
Pool size
--
Generated
0
Password inputs
Generate secure passwords
Password result
Assumptions
Strong password settings and entropy
Use the settings to balance length, character set, readability, batch output, and site-specific password restrictions.
Password strength basics
Randomness and length are the main drivers of password strength. A longer random password is usually stronger than a short password that only meets minimum character-type rules.
Entropy estimate
A rough entropy estimate is password length multiplied by log2 of the usable character-set size. The estimate is useful for comparing settings, but real-world safety also depends on uniqueness, storage, phishing resistance, and account protections.
When to change settings
- Increase length for important accounts or shared credentials.
- Remove ambiguous characters when a password may be typed from paper or read aloud.
- Customize symbols only when a website rejects certain characters.
- Use batch output for test accounts, imports, or administrative setup tasks.
Password manager workflow
Generate a unique password for each account, save it in a trusted password manager, and avoid reusing it elsewhere. A generated password is only useful if it can be stored and recovered securely.
Password generator notes
Passwords are generated locally and are not transmitted, stored, or copied automatically. Use batch mode for account setup or testing, and use a trusted password manager to save passwords you decide to keep.
Frequently asked questions
Are generated passwords sent to a server?
No. Password generation happens locally in your browser. PlanetToolbox does not transmit, store, or automatically copy generated passwords.
What makes a strong password?
A strong password is long, random, and unique for each account. Length generally matters more than forcing a short password to use every character type.
Should I remove ambiguous characters?
Remove ambiguous characters when a password may be typed manually or read aloud. Keep the full character set when the password will be saved directly into a password manager.
When should I use a passphrase instead?
Use a passphrase when you need something easier to read or type. Use a random password when a password manager will save and autofill it.
Related tools
Continue with practical tools that answer similar questions.
Passphrase Generator
Generate memorable random passphrases with configurable word count, separators, capitalization, number suffixes, and entropy estimates.
UUID Generator / UUID Batch Generator
Generate random UUID v4 batches in standard, uppercase, compact, brace-wrapped, plain-list, JSON, or CSV output formats.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or files locally in your browser.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to UTF-8 text with standard and URL-safe output options.